Warren Buffett, Berkshire Hathaway chairman & CEO, says there is a plan in place to succeed him that would take less than 24 hours to implement. Buffett also discusses his partnership with Berkshire Hathaway Vice Chairman Charlie Munger.

Warren Buffett, Berkshire Hathaway chairman & CEO, discusses how times have changed since the company's first annual shareholder meeting. Buffett says National Indemnity was one on the best investments he made.

CNBC's Mandy Drury looks ahead to what are likely to be next week's top business and financial stories. Berkshire earnings, and a mobile extravaganza. And the Affordable Care Act comes before the Supreme Court, again.